Prefix overview
Phone numbers in prefix 256-257
This page covers the 256-257 prefix in the United States. It shows where numbers come from, which carrier is linked to the range, and how this block is structured.
If you are looking for a specific number, you can continue to its dedicated phone page. Otherwise, this page helps you understand the broader number block behind it.
PREFIX
256-257
RATE CENTER
FALKVILLE
CARRIER
ONVOY, LLC - AL
AL
Prefix range
The prefix 256-257 includes numbers from 2562570000 to 2562579999.
This range is associated with the FALKVILLE rate center and was originally assigned to ONVOY, LLC - AL.
Numbers in this prefix
20 numbers